发明名称 Eyeglass frames adapted to hang flat against a wearer's chest
摘要 A pair of eyeglass frames having double action articulating hinges which allow the eyeglass frames to be folded into a substantially flat configuration for suspension about a wearer's neck and against a wearer's chest. The temple pieces are rotatable inwardly and downwardly about substantially vertical and horizontal axes respectively to assume their "hang flat" configuration.
申请公布号 US5229795(A) 申请公布日期 1993.07.20
申请号 US19910796089 申请日期 1991.11.20
申请人 HEINTZELMAN, E. EARL 发明人 HEINTZELMAN, E. EARL
分类号 G02C5/22;G02C11/00 主分类号 G02C5/22
代理机构 代理人
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